{"id":"CVE-2009-0628","aliases":["EUVD-2009-0631","GHSA-p6q5-7686-4mrq"],"status":"published","title":"Memory leak in the SSLVPN feature in Cisco IOS 12.3 through 12.4 allows remote attackers to cause...","description":"Memory leak in the SSLVPN feature in Cisco IOS 12.3 through 12.4 allows remote attackers to cause a denial of service (memory consumption and device crash) by disconnecting an SSL session in an abnormal manner, leading to a Transmission Control Block (TCB) leak.","severity":{"version":"2.0","score":9,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01925,"percentile":0.8009,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200"],"published":"2009-03-27T16:00:00Z","modified":"2026-06-16T23:05:26Z","products":[{"vendor":"cisco","product":"cisco_ios"}],"references":[{"url":"http://www.cisco.com/en/US/products/products_security_advisory09186a0080a90469.shtml","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12092","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"http://www.securityfocus.com/bid/34239","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://secunia.com/advisories/34438","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://securitytracker.com/id?1021896","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/49427","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.cisco.com/en/US/products/products_security_advisory09186a0080a90424.shtml","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Vendor Advisory"]},{"url":"http://www.vupen.com/english/advisories/2009/0851","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-0628"},{"url":"https://github.com/advisories/GHSA-p6q5-7686-4mrq"}],"sources":{"cve":[{"id":"CVE-2009-0628","description":"Memory leak in the SSLVPN feature in Cisco IOS 12.3 through 12.4 allows remote attackers to cause a denial of service (memory consumption and device crash) by disconnecting an SSL session in an abnormal manner, leading to a Transmission Control Block (TCB) leak.","status":"published","published":"2009-03-27T16:00:00Z","modified":"2024-08-07T04:40:05.091Z","updated_at":"2026-11-02T14:33:26.302774Z"}],"euvd":[{"id":"EUVD-2009-0631","description":"Memory leak in the SSLVPN feature in Cisco IOS 12.3 through 12.4 allows remote attackers to cause a denial of service (memory consumption and device crash) by disconnecting an SSL session in an abnormal manner, leading to a Transmission Control Block (TCB) leak.","status":"published","published":"2009-03-27T16:00:00Z","modified":"2024-08-07T04:40:05Z","updated_at":"2026-11-03T01:39:25.189813Z"}],"ghsa":[{"id":"GHSA-p6q5-7686-4mrq","title":"Memory leak in the SSLVPN feature in Cisco IOS 12.3 through 12.4 allows remote attackers to cause...","description":"Memory leak in the SSLVPN feature in Cisco IOS 12.3 through 12.4 allows remote attackers to cause a denial of service (memory consumption and device crash) by disconnecting an SSL session in an abnormal manner, leading to a Transmission Control Block (TCB) leak.","status":"published","published":"2022-05-02T03:17:02Z","modified":"2023-01-31T05:07:57Z","cwes":["CWE-200"],"updated_at":"2026-11-02T14:49:18.423365Z"}],"nvd":[{"id":"CVE-2009-0628","description":"Memory leak in the SSLVPN feature in Cisco IOS 12.3 through 12.4 allows remote attackers to cause a denial of service (memory consumption and device crash) by disconnecting an SSL session in an abnormal manner, leading to a Transmission Control Block (TCB) leak.","status":"published","published":"2009-03-27T16:30:01.967Z","modified":"2026-06-16T23:05:26.92Z","cvss":[{"version":"2.0","score":9,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:01:34.44527Z"}]}}